As Roach's approach to ambient music matured, he has typically[3] been beatless, although his rhythmic and trance-based groove and tribal-ambient releases are nearly as numerous[3] as his more atmospheric releases. Some recordings are strictly synthesizer based, whereas some recordings include ambient guitar experiments, and other releases cross over with more ethnic influences.

He was an early proponent[4] of the didgeridoo's use in ambient music and learned to play it during his extended trips to Australia during the 1980s. He later worked with Mexican musician Jorge Reyes who would introduce a Prehispanic element, and these fusions would further establish Roach as one of the founders[3] of the tribal-ambient sound.